Sxx Calculator for Linear Regression

X-values:

= Calculate

× Reset

Sxx:

How to Use the Sxx Calculator?

1. Input the list of data points with a comma or space delimiter.
2. Click the 'Calculate' button.
3. Finally, the tool returns the Sxx result of a given regression model.

How to Calculate Sxx?

The formula to compute Sxx is:

Where,
x_i = Each data point of the independent variable,
x̄ = Mean of sample.

The Sxx is used to compute the slope of a regression line in linear regression.